Every so often, Microsoft's Live.com search engine offers a cashback bonus if you buy eBay "Buy It Now" items through its links. A handy email notifier tells you when great percentages are up for grabs.

Microsoft's Live Search Cashback program is a product search engine that provides—you guessed…
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Right now, for instance, Live.com is offering 8 percent in cashback bonuses when you buy through eBay and a handful of other merchants. SlickDeals user Waffle S.S. crafted a simple email notifier to let you know when MS and eBay are teaming up to offer really great cashback bonuses through a Windows Live account, which could make for strong online shopping incentives. Enter in the cashback percentage threshold you're interested in, and the site emails you (only once) when it hits that level. Simple, helpful, and a great reason to keep an eye on that gadget you can't quite swing.